centrioles

(noun)

Centrioles are a very important part of centrosomes, which are involved in organizing microtubules in the cytoplasm. In general, each centriole of the centrosome is based on a nine triplet microtubule assembled in a cartwheel structure, and contains centrin, cenexin, and tektin.

Related Terms

Examples of centrioles in the following topics:

  • Centrosome

    • two orthogonally arranged centrioles .
    • The centrioles are surrounded by
    • The mother centriole just aids in the accumulation of materials required for the assembly of the daughter centriole.
    • Many cells can completely undergo interphase without centrioles.
    • Outline the role of the centrosome and centrioles in the cell cycle

  • Comparing Plant and Animal Cells

    • While both animal and plant cells have microtubule organizing centers (MTOCs), animal cells also have centrioles associated with the MTOC: a complex called the centrosome.
    • It contains a pair of centrioles, two structures that lie perpendicular to each other .
    • Each centriole is a cylinder of nine triplets of microtubules.
    • The centrosome consists of two centrioles that lie at right angles to each other.
    • Each centriole is a cylinder made up of nine triplets of microtubules.

  • Interphase

    • At the center of each animal cell, the centrosomes of animal cells are associated with a pair of rod-like objects, the centrioles, which are at right angles to each other.
    • Centrioles help organize cell division.
    • Centrioles are not present in the centrosomes of other eukaryotic species, such as plants and most fungi.

  • Fertilization

    • Fusion between the oocyte plasma membrane and sperm follows and allows the sperm nucleus, centriole, and flagellum, but not the mitochondria, to enter the oocyte.

  • Phylogeny of the Eukarya

    • The last common ancestor of all eukaryotes is believed to have been a phagotrophic protist with a nucleus, at least one centriole and cilium, facultatively aerobic mitochondria, sex (meiosis), a dormant cyst with a cell wall of chitin, cellulose, and peroxisomes.

  • Binary Fission

    • FtsZ proteins can form filaments, rings, and other three-dimensional structures that resemble the way tubulin forms microtubules, centrioles, and various cytoskeletal components.

  • Intermediate Filaments and Microtubules

    • Microtubules are also the structural elements of flagella, cilia, and centrioles (the latter are the two perpendicular bodies of the centrosome).

  • Characteristics of Eukaryotic Cells

    • Despite their fundamental similarities, there are some striking differences between animal and plant cells.Animal cells have centrioles, centrosomes, and lysosomes, whereas plant cells do not.

  • Spermatogenesis

    • One of the centrioles of the cell elongates to become the tail of the sperm.